1 /***
2 * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
3 */
4 package test.net.sourceforge.pmd.rules;
5
6 import net.sourceforge.pmd.PMD;
7 import net.sourceforge.pmd.Report;
8 import net.sourceforge.pmd.Rule;
9 import net.sourceforge.pmd.RuleSetNotFoundException;
10 import net.sourceforge.pmd.RuleViolation;
11 import test.net.sourceforge.pmd.testframework.RuleTst;
12
13 import java.util.Iterator;
14
15 public class CyclomaticComplexityTest extends RuleTst {
16
17 private Rule rule;
18
19 public void setUp() throws RuleSetNotFoundException {
20 rule = findRule("codesize", "CyclomaticComplexity");
21 }
22
23 public void testOneMethod() throws Throwable {
24 rule.addProperty("reportLevel", "1");
25 Report report = new Report();
26 runTestFromString(TEST1, rule, report);
27 Iterator i = report.iterator();
28 RuleViolation rv = (RuleViolation) i.next();
29 assertTrue(rv.getDescription().indexOf("Highest = 1") != -1);
30 }
31
32 public void testNastyComplicatedMethod() throws Throwable {
33 rule.addProperty("reportLevel", "10");
34 Report report = new Report();
35 runTestFromString(TEST2, rule, report);
36 Iterator i = report.iterator();
37 RuleViolation rv = (RuleViolation) i.next();
38 assertTrue(rv.getDescription().indexOf("Highest = 12") != -1);
39 }
40
41 public void testConstructor() throws Throwable {
42 rule.addProperty("reportLevel", "1");
43 Report report = new Report();
44 runTestFromString(TEST3, rule, report);
45 Iterator i = report.iterator();
46 RuleViolation rv = (RuleViolation) i.next();
47 assertTrue(rv.getDescription().indexOf("Highest = 1") != -1);
48 }
49
50 public void testLessComplicatedThanReportLevel() throws Throwable {
51 rule.addProperty("reportLevel", "10");
52 Report report = new Report();
53 runTestFromString(TEST1, rule, report);
54 assertEquals(0, report.size());
55 }
56
57 private static final String TEST1 =
58 "public class Foo {" + PMD.EOL +
59 " public void foo() {}" + PMD.EOL +
60 "}";
61
62 private static final String TEST2 =
63 "public class Foo {" + PMD.EOL +
64 " public void example() {" + PMD.EOL +
65 " int x = 0;" + PMD.EOL +
66 " int a = 0;" + PMD.EOL +
67 " int b = 0;" + PMD.EOL +
68 " int c = 0;" + PMD.EOL +
69 " int d = 0;" + PMD.EOL +
70 " int a1 = 0;" + PMD.EOL +
71 " int a2 = 0;" + PMD.EOL +
72 " int b1 = 0;" + PMD.EOL +
73 " int b2 = 0;" + PMD.EOL +
74 " int z = 0;" + PMD.EOL +
75 " int h = 0;" + PMD.EOL +
76 " int e = 0;" + PMD.EOL +
77 " int f = 0;" + PMD.EOL +
78 "" + PMD.EOL +
79 " if (a == b) {" + PMD.EOL +
80 " if (a1 == b1) {" + PMD.EOL +
81 " x=2;" + PMD.EOL +
82 " } else if (a2 == b2) {" + PMD.EOL +
83 " x=2;" + PMD.EOL +
84 " }" + PMD.EOL +
85 " else" + PMD.EOL +
86 " {" + PMD.EOL +
87 " x=2;" + PMD.EOL +
88 " }" + PMD.EOL +
89 " }" + PMD.EOL +
90 " else if (c == d)" + PMD.EOL +
91 " {" + PMD.EOL +
92 " while (c == d)" + PMD.EOL +
93 " {" + PMD.EOL +
94 " x=2;" + PMD.EOL +
95 " }" + PMD.EOL +
96 " }" + PMD.EOL +
97 " else if (e == f)" + PMD.EOL +
98 " {" + PMD.EOL +
99 " for (int n = 0; n < h; n++)" + PMD.EOL +
100 " {" + PMD.EOL +
101 " x=2;" + PMD.EOL +
102 " }" + PMD.EOL +
103 " }" + PMD.EOL +
104 " else" + PMD.EOL +
105 " {" + PMD.EOL +
106 " switch (z)" + PMD.EOL +
107 " {" + PMD.EOL +
108 " case 1:" + PMD.EOL +
109 " x=2;" + PMD.EOL +
110 " break;" + PMD.EOL +
111 "" + PMD.EOL +
112 " case 2:" + PMD.EOL +
113 " x=2;" + PMD.EOL +
114 " break;" + PMD.EOL +
115 "" + PMD.EOL +
116 " case 3:" + PMD.EOL +
117 " x=2;" + PMD.EOL +
118 " break;" + PMD.EOL +
119 "" + PMD.EOL +
120 " default:" + PMD.EOL +
121 " x=2;" + PMD.EOL +
122 " break;" + PMD.EOL +
123 " }" + PMD.EOL +
124 " }" + PMD.EOL +
125 " }" + PMD.EOL +
126 "}";
127
128 private static final String TEST3 =
129 "public class Foo {" + PMD.EOL +
130 " public Foo() {}" + PMD.EOL +
131 "}";
132
133 }